This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.